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GLM-5.2 vs Muse Spark 1.3

Muse Spark 1.3 leads the LLM Stats Score 55.1 to 45.6. Muse Spark 1.3 is 9.3x cheaper per token.

Zhipu AI · Meta · Updated for 2026

Which is better?

Muse Spark 1.3 leads the overall LLM Stats Score 55.1 to 45.6, ranking #4 overall.

In the 2 individual benchmarks reported for both models, Muse Spark 1.3 wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, Muse Spark 1.3 is roughly 9.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose GLM-5.2

  • you need open weights you can self-host or fine-tune

Choose Muse Spark 1.3

  • overall performance matters — it scores 55.1 and ranks #4 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • cost matters — it's about 9.3x cheaper per token
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

Core performance indexes
45.6
#27
55.1
#4
44.9
#29
52.6
#7
35.5
#26
41.9
#9
30.1
#33
40.6
#4
Cost, coverage & limits
Benchmark wins
0 of 2
2 of 2
Input price
$0.75 / M
$0.10 / M
Output price
$2.40 / M
$0.20 / M
Context window
1,048,576
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GLM-5.2
Muse Spark 1.3
22.1#46
35.8#2
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

19 reported for GLM-5.2 · 11 for Muse Spark 1.3

2 shared

GLM-5.2 outperforms in 0 benchmarks, while Muse Spark 1.3 is better at 2 benchmarks (DeepSWE 1.1, Terminal-Bench 2.1).

Muse Spark 1.3 significantly outperforms across most benchmarks.

Wed Sep 09 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Muse Spark 1.3 costs less

For input processing, GLM-5.2 ($0.75/1M tokens) is 7.5x more expensive than Muse Spark 1.3 ($0.10/1M tokens).

For output processing, GLM-5.2 ($2.40/1M tokens) is 12.0x more expensive than Muse Spark 1.3 ($0.20/1M tokens).

In conclusion, GLM-5.2 is more expensive than Muse Spark 1.3.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Wed Sep 09 2026 • llm-stats.com
Zhipu AI
GLM-5.2
Input tokens$0.75
Output tokens$2.40
Best providerDeepinfra
Meta
Muse Spark 1.3
Input tokens$0.10
Output tokens$0.20
Best providerMeta
Notice missing or incorrect data?Start an Issue

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,048,576 tokens. GLM-5.2 can generate longer responses up to 1,048,576 tokens, while Muse Spark 1.3 is limited to 943,718 tokens.

Zhipu AI
GLM-5.2
Input1,048,576 tokens
Output1,048,576 tokens
Meta
Muse Spark 1.3
Input1,048,576 tokens
Output943,718 tokens
Wed Sep 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Muse Spark 1.3 supports multimodal inputs, whereas GLM-5.2 does not.

Muse Spark 1.3 can handle both text and other forms of data like images, making it suitable for multimodal applications.

GLM-5.2

Text
Images
Audio
Video

Muse Spark 1.3

Text
Images
Audio
Video

License

Usage and distribution terms

GLM-5.2 is licensed under MIT, while Muse Spark 1.3 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

GLM-5.2

MIT

Open weights

Muse Spark 1.3

Proprietary

Closed source

Release Timeline

When each model was launched

GLM-5.2 was released on 2026-06-16, while Muse Spark 1.3 was released on 2026-09-02.

Muse Spark 1.3 is 3 months newer than GLM-5.2.

GLM-5.2

Jun 16, 2026

2 months ago

Muse Spark 1.3

Sep 2, 2026

1 weeks ago

2mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GLM-5.2 is available from DeepInfra, Fireworks, FriendliAI, Novita, Together, ZAI. Muse Spark 1.3 is available from Meta Model API.

GLM-5.2

deepinfra logo
Deepinfra
Input Price:Input: $0.75/1MOutput Price:Output: $2.40/1M
fireworks logo
Fireworks
Input Price:Input: $1.40/1MOutput Price:Output: $4.40/1M
friendli logo
FriendliAI
Input Price:Input: $1.40/1MOutput Price:Output: $4.40/1M
novita logo
Novita
Input Price:Input: $1.40/1MOutput Price:Output: $4.40/1M
together logo
Together
Input Price:Input: $1.40/1MOutput Price:Output: $4.40/1M
z logo
Unknown Organization
Input Price:Input: $1.40/1MOutput Price:Output: $4.40/1M

Muse Spark 1.3

meta logo
Meta
Input Price:Input: $0.10/1MOutput Price:Output: $0.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against GLM-5.2 and Muse Spark 1.3 side-by-side, then vote on the output you prefer.

GLM-5.2
✓ Preferred
Muse Spark 1.3
Open in Playground

FAQ

Common questions about GLM-5.2 vs Muse Spark 1.3.

Which is better, GLM-5.2 or Muse Spark 1.3?

Muse Spark 1.3 leads the LLM Stats Score 55.1 to 45.6. GLM-5.2 is made by Zhipu AI and Muse Spark 1.3 is made by Meta. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GLM-5.2 compare to Muse Spark 1.3 in benchmarks?

GLM-5.2 scores AIME 2026: 99.2%, HMMT 2025: 94.4%, HMMT Feb 26: 92.5%, GPQA: 91.2%, IMO-AnswerBench: 91.0%. Muse Spark 1.3 scores MRCR v2 (8-needle): 98.5%, MRCR v2 (8-needle, 512K-1M): 98.1%, DeepSearchQA: 89.4%, Terminal-Bench 2.1: 88.8%, DeepSWE 1.1: 75.4%.

Is GLM-5.2 cheaper than Muse Spark 1.3?

Muse Spark 1.3 is 7.5x cheaper for input tokens. GLM-5.2 costs $0.75/M input and $2.40/M output via deepinfra. Muse Spark 1.3 costs $0.10/M input and $0.20/M output via meta.

What are the context window sizes for GLM-5.2 and Muse Spark 1.3?

GLM-5.2 supports 1.0M tokens and Muse Spark 1.3 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GLM-5.2 and Muse Spark 1.3?

Key differences include LLM Stats Score (45.6 vs 55.1), input pricing ($0.75 vs $0.10/M), multimodal support (no vs yes), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes GLM-5.2 and Muse Spark 1.3?

GLM-5.2 is developed by Zhipu AI and Muse Spark 1.3 is developed by Meta.